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Coronary artery calcium testing can reveal plaque in arteries, but is underused

A long list of Lynda Hollander’s paternal relatives had heart disease, and several had undergone major surgeries. So when she hit her mid-50s and saw her cholesterol levels creeping up after menopause, she said, “I didn’t want to take a chance.” A cardiologist told Ms. Hollander that based on factors like age, sex, cholesterol and blood pressure, she faced a moderate risk of a major cardiac event, like a heart attack, within the next 10 years. Doctors typically counsel such patients about the

Personal aviation is about to get interesting (2023)

Aviation is a poster child for economic stagnation. Yes, airline travel has gotten cheaper and safer—great. But every other aspect of aviation has struggled or even regressed. As I’ve noted many times, we had supersonic travel across the Atlantic from 1976 to 2003. Today, not even the world’s richest travelers can fly that fast. Another part of aviation that has suffered over the last half-century is general aviation, particularly its low-end segment, personal aviation, in which people fly them

Consciousness and being: How humans and AI influence each other

For a human, AI is just a part of being. For a model, a human is all of being. And the Vortex Protocol: A Prompt for Testing the Hypotheses. The longest and most fruitless discussions tend to be with materialists, especially those close to the position Marx laid out as “Being determines consciousness.” It's amusing that Marx was talking about the economic base, but the clarity and precision of this definition have allowed it to be used in a very broad sense. Today, this powerful statement under

Resizable structs in Zig

In this post I will make the case for the concept of a “runtime resizable struct” in Zig. I will then design an API by exploiting Zig’s powerful comptime functionality. If you want to skip straight to the implementation, a minimal proof of concept is available as a package on GitHub. Zig has support for many kinds of collection types in its standard library. All of them can broadly be broken down to two primitive backing types for contiguous data storage: [N]T – arrays, when you always know t

Fast and cheap bulk storage: using LVM to cache HDDs on SSDs

Since the inception of solid-state drives (SSDs), there has been a choice to make—either use SSDs for vastly superior speeds, especially with non-sequential read and writes (“random I/O”), or use legacy spinning rust hard disk drives (HDDs) for cheaper storage that’s a bit slow for sequential I/O and painfully slow for random I/O. The idea of caching frequently used data on SSDs and storing the rest on HDDs is nothing new—solid-state hybrid drives (SSHDs) embodied this idea in hardware form, wh

‘Gen V’ Will Bring More ‘Boys’ Stars Into Season 2

The second season of Gen V draws closer, and Prime Video came to San Diego Comic-Con with a new trailer underlining the stakes for Marie and the gang when they return to Godolkin University. For her, going back to school after they escaped imprisonment is the last thing Marie wants. She’s been fine living as a drifter on the run, but a save from Starlight (Erin Moriarty), who’s also on the run after The Boys’ previous season, comes with a catch: the ex-Seven member wants Marie to investigate an

‘Alien: Earth’ Crashes Into Comic-Con With a Massive Outdoor Experience

The USCSS Maginot, a Weyland Yutani research vessel, crashed into the large lawn next to Hall H at San Diego Comic-Con this weekend. Onlookers remarked they hoped there was nothing dangerous on board, as containers had spilled all over the surrounding area. That’s both the tease for a very cool activation put together by FX for its new show, Alien: Earth, as well as the setup for Alien: Earth itself. The show, which debuts August 12, centers on a crashed ship and all the horrors that it contain

After BlackSuit is taken down, new ransomware group Chaos emerges

Hot on the heels of a major ransomware group being taken down through an international law enforcement operation comes a new development that highlights the whack-a-mole nature of such actions: A new group, likely comprised of some of the same members, has already taken its place. The new group calls itself Chaos, in recognition of the .chaos name extension its ransomware stamps on files it has encrypted and the “readme.chaos[.]txt” name given to ransom notes sent to victims. Researchers at Cis

EE says latest outage fixed after 'technical fault'

EE says latest outage fixed after 'technical fault' EE says it carried out further work overnight to fix a technical problem which left some customers unable to make or receive calls. In the last 24 hours, hundreds of people who use the mobile provider have told the BBC they have experienced service issues. It comes after thousands were left unable to make or receive calls earlier this week due to a technical issue which impacted both mobile and landline phones. On Saturday, a spokesperson f

‘Ok Google, turn on the lights’ is mysteriously broken for many users right now

Ryan Haines / Android Authority TL;DR Many users are reporting not being able to control lights or groups of lights with an ‘Ok Google’ command. I noticed this issue on my speakers yesterday, but thought it was a random bug. It seems more widespread, and the Google Nest account has acknowledged the issue. Yesterday evening, as I went to bed, I told my Google Nest Audio, “Hey Google, turn off all the lights.” Normally, this is one of the easiest commands, and my success rate with it is better

Indie App Spotlight: ‘Pics2PDF’ turns your best photos into a quick document, and more

Welcome to Indie App Spotlight. This is a weekly 9to5Mac series where we showcase the latest apps in the indie app world. If you’re a developer and would like your app featured, get in contact. As the name suggests, Pics2PDF lets you select a bunch of photos from your photos library, and convert it into a PDF. This can be great if you want to quickly print out photos from your photos library in one swift process, or if you’re otherwise trying to share multiple photos at once in a more formal ma

I ran with the Apple Watch and Samsung Watch 8 - here's the better AI coach

Samsung's Running Coach on the left, and Apple's Workout Buddy on the right. Nina Raemont/ZDNET Apple just released its latest Apple Watch software, the public beta for WatchOS 26, and one feature I was eager to try is finally available. Workout Buddy is an AI-powered feature that offers spoken encouragement, stats, and a host of metrics on the Apple Watch, and works in conjunction with Apple-owned earbuds like AirPods or Beats. It delivers sporadic bits of data, tries to motivate you, and ann

Where are vacation homes located in the US?

As of 2023, the US has around 142.3 million housing units: roughly one home for every 2.4 people in the country. The vast majority of these homes – 127.5 million – are occupied. The remaining 14.8 million homes are vacant. Of these, around 4.8 million homes, or around 3.5% of the total, are vacant because they’re seasonal, or vacation, homes. I’ve spent a lot of time writing about patterns of housing and home construction in the US, but virtually none of it has been looking at vacation homes sp

Shallow Water Is Dangerous Too

Julia and I know drowning is the biggest risk to US kids 1-4, and we try to take this seriously. But yesterday our 4yo came very close to drowning in a fountain. (She's fine now.) This week we were on vacation with my extended family: nine kids, eight parents, and ten grandparents/uncles/aunts. For the last few years we've been in a series of rental houses, and this time on arrival we found a fountain in the backyard: I immediately checked the depth with a stick and found that it would be just

Algorithm for simulating phosphor persistence of analog oscilloscopes

Background to phosphor displays and analog oscilloscopes For all of you that have used analog oscilloscopes or other equipment with a phosphor display knows how beautiful the image can be from such displays. The color grading, which naturally occurs due to the persistence in the glow from the phosphor, also acts as a useful measurement on the signal integrity, such as how much noise there is and the shape/modulation of the underlying signal. Photograph of the display on a COS6100A analog oscil

Large ancient Hawaiian petroglyphs uncovered by waves on Oahu

On this stretch of Oahu shoreline, ancient Hawaiian petroglyphs were uncovered by waves. U.S. Army Garrison Hawaii This month, large ancient Hawaiian petroglyphs were exposed along the shoreline on Oahu’s west side. Usually covered by sand, they haven’t been seen for years and are believed to be more than 1,000 years old. The petroglyphs are on a beach fronting a U.S. Army recreation center and were uncovered when sand and sediment shifted because of the waves and current. “This is a natural p

Getting decent error reports in Bash when you're using 'set -e'

You're using a tool with a too-generic User-Agent You're probably reading this page because you've attempted to access some part of my blog (Wandering Thoughts) or CSpace, the wiki thing it's part of. Unfortunately whatever you're using to do so has a HTTP User-Agent header value that is too generic or otherwise excessively suspicious. Unfortunately, as of early 2025 there's a plague of high volume crawlers (apparently in part to gather data for LLM training) that behave like this. To reduce th

What went wrong for Yahoo

Reddit calls itself the front page of the Internet. But for a good decade or even a decade and a half, Yahoo had as legitimate of a claim as any to the title of front page of the Internet. On July 25, 2016, Yahoo met an inglorious end as an independent company, selling out to Verizon for $4.8 billion. That makes today as good of a day as any to look at what happened to Yahoo, the first front page of the Internet. How far Yahoo fell At the time, Forbes called it the saddest $5 billion deal in t

Purple Earth hypothesis

Astrobiological hypothesis regarding early photosynthetic organisms Artist's impression of Earth in the early Archean with a purplish hydrosphere and coastal regions Purple culture of Haloarchaea (left) and isolated purple and red membrane components (right) The Purple Earth Hypothesis (PEH) is an astrobiological hypothesis, first proposed by molecular biologist Shiladitya DasSarma in 2007,[1] that the earliest photosynthetic life forms of Early Earth were based on the simpler molecule retina

Resizable Structs in Zig

In this post I will make the case for the concept of a “runtime resizable struct” in Zig. I will then design an API by exploiting Zig’s powerful comptime functionality. If you want to skip straight to the implementation, a minimal proof of concept is available as a package on GitHub. Zig has support for many kinds of collection types in its standard library. All of them can broadly be broken down to two primitive backing types for contiguous data storage: [N]T – arrays, when you always know t

OCaml Programming: Correct and Efficient and Beautiful

OCaml Programming: Correct + Efficient + Beautiful# A textbook on functional programming and data structures in OCaml, with an emphasis on semantics and software engineering. This book is the textbook for CS 3110 Data Structures and Functional Programming at Cornell University. A past title of this book was “Functional Programming in OCaml”. Spring 2025 Edition. Videos. There are over 200 YouTube videos embedded in this book. They can be watched independently of reading the book. Start with t

The ‘Star Wars’ Black Series Figure We’ve Been Waiting For Is Finally Here

For the past year, this is what has happened here on io9 every time Hasbro has announced a new figure for its Star Wars Black Series line. James Whitbrook: “Germain, Hasbro just dropped some new Black Series Images.” Germain Lussier: “Are any of them The Stranger from The Acolyte with a removable helmet revealing the face of Manny Jacinco?” Whitbrook: *Silence* “No, it is not.” Without exaggeration, we’ve had that conversation at least a dozen times since the release of The Acolyte last year,

The First Trailer for ‘Star Trek: Khan’ Lifts the Lid on a Legend

Almost three years ago, Wrath of Khan director Nicholas Meyer shocked the Star Trek universe when he announced that he would be returning to one of Trek‘s most iconic villains in Star Trek: Khan, a scripted podcast revealing the secret life of Khan Noonien Singh. Now, we have our first look at the series—and know when to expect it. During today’s Star Trek Universe panel at San Diego Comic-Con, Paramount revealed the first trailer for Khan, giving us a first listen at its cast in action. Set be

New ‘Project Hail Mary’ Footage, and Ryan Gosling, Wowed Comic-Con

A few short weeks ago, directors Phil Lord and Chris Miller graced us with an extended first look at their upcoming sci-fi adaptation, Project Hail Mary. The three-minute trailer for a movie not coming out for nine months displayed supreme confidence in the project, and after watching it, you could see why. So to then bring the film to Hall H at San Diego Comic-Con, along with its iconic star Ryan Gosling, felt almost like too much. We already have this glorious trailer. What more could we see?

Premier League Summer Series: Stream Everton vs. Bournemouth From Anywhere

The second edition of the Premier League Summer Series tournament kicks off in the US on Saturday as David Moyes' Everton take on Andoni Iraola's Bournemouth. Below, we'll outline the best live TV streaming services to use to watch the game as it happens, wherever you are in the world, and how to use a VPN if it's not available where you are. Taking place at three venues across the US, the six-match, round-robin style tournament also includes fellow EPL sides Manchester United and West Ham, an

Best 3D Printing Filament and Which to Buy in 2025

CNET staff -- not advertisers, partners or business interests -- determine how we review products and services. If you buy through our links, we may earn a commission. There are plenty of great reasons to pick up a 3D printer, but it's important to find a filament that works for you. Choosing the wrong filament will lead to clogs, a stringy printing process and ultimately having to start all over again. Filament is the material used for FDM 3D printing, and there's certainly no shortage of opti

Today's Wordle Hints, Answer and Help for July 27, #1499

Looking for the most recent Wordle answer? Click here for today's Wordle hints, as well as our daily answers and hints for The New York Times Mini Crossword, Connections, Connections: Sports Edition and Strands puzzles. Today's Wordle puzzle is neither super hard nor really easy. The letters are fairly common, except I never guess the starting letter. If you need a new starter word, check out our list of which letters show up the most in English words. If you need hints and the answer, read on.

Bonkers NASA Mission Aims to Drop Six Helicopters Onto Mars From Space

Defense tech company AeroVironment and NASA's Jet Propulsion Laboratory have shown off a wild concept for deploying six helicopters above the surface of Mars to scout for water and possible human landing sites. The concept, dubbed "Skyfall," builds on NASA's extremely successful and revolutionary Ingenuity Mars helicopter, which became the first manmade object to achieve powered flight on another planet in 2021. It flew a whopping 72 times over three years, vastly exceeding expectations. AeroV

Sam Altman Says OpenAI Is Poised to Wipe Out Entire Categories of Human Jobs

OpenAI CEO Sam Altman is warning that entire job categories could be wiped out by artificial intelligence, echoing widespread concerns that the technology could have devastating effects on the human labor market. During his most recent trip to Washington, DC, Altman told Federal Reserve vice-chair for supervision Michelle Bowman that "some areas" in the job market will be "just like totally, totally gone" as they're replaced by AI agents. Altman identified customer support roles as a "category

I broke my caseless Pixel but refuse to learn my lesson

Mitja Rutnik / Android Authority I recently broke my Pixel 7. In a span of just a few weeks, I managed to drop it three times, shattering the display to the point it doesn’t even turn on anymore. The final drop was the most damaging: my caseless Pixel plummeted from my pocket straight down onto concrete. Game over. What’s ironic is that back in December, I wrote a post about how I’ve never actually used a proper case but never damaged any of my phones even remotely. I guess I jinxed it, and no